Atty. John D. Cahill

Atty. John D. Cahill

John D. Cahill is a lawyer practicing real and personal property tax consultation and litigation, sales and use tax consultation and litigation, taxation.

Los Angeles Los Angeles 72 yrs experience 72 year
Call (626) 628-0030 Book Appointment

Profile Summary

About John D. Cahill at a glance

John D. Cahill is a Member based in Los Angeles, California, practicing at Cahill Davis And O Neall Llp. They have 72+ years of legal experience, licensed to practice since 1954. Their practice focuses on tax and litigation. Admitted to practice in New York (1954), California (1957), and U.S. Supreme Court (1958). Educated at State University of New York at Buffalo (LL.B., 1953). Recognitions include AV Preeminent. Serands clients in Los Angeles, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John D. Cahill is a lawyer practicing real and personal property tax consultation and litigation, sales and use tax consultation and litigation, taxation
  • John has been licensed for 72 years
  • John practices at Cahill, Davis & O'Neall, LLP in Los Angeles, CA

Practice Areas Explained

John D. Cahill's Areas of Practice

Each practice area below reflects the types of cases John D. Cahill handles, with a brief overview of what that area of law covers.

Tax Law

Tax attorneys handle IRS audits, tax debt, international tax, estate planning, and tax court litigation.

John D. Cahill is one of 85,302 tax attorneys indexed nationally. Browse tax attorneys in California →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

John D. Cahill is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in California →

Jurisdictional Context

Why local counsel matters in California

Practicing law in California. Legal matters in California are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Los Angeles are typically filed in the local municipal court or the appropriate California state district court, depending on subject matter and amount in controversy. An attorney licensed in California brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in California courts without local counsel or pro hac vice admission.

Looking for additional California attorneys? Browse all attorneys in Los Angeles or all attorneys in California.

Frequently Asked

Common questions about John D. Cahill

Where is John D. Cahill's law office located?
John D. Cahill's law practice is located in Los Angeles, California. The firm is Cahill Davis And O Neall Llp. You can contact the office directly through this profile page.
What practice areas does John D. Cahill handle?
John D. Cahill focuses on tax, litigation. Each practice area listed reflects experience handling cases of that type in California.
How long has John D. Cahill practiced law?
John D. Cahill has 72+ years of legal experience and has been licensed since 1954.
Where did John D. Cahill go to law school?
John D. Cahill earned their education at (LL.B., 1953).
How can I contact John D. Cahill for a consultation?
You can contact John D. Cahill directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has John D. Cahill received?
John D. Cahill's notable recognition includes: AV Preeminent.

Education

LL.B.
State University of New York at Buffalo
- 1953

Awards

AV Preeminent

Bar Admissions

New York
Admitted: 1954
California
Admitted: 1957
U.S. Supreme Court
Admitted: 1958

Reviews

5.0
1 Review
5 0
4 0
3 0
2 0
1 0
These reviews belong to platform users; they do not constitute advertisement or promotion for the attorney. Opinions are published for informational purposes only.

No reviews yet.